<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">

<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  <title>你好</title>
</head>

<body>
  <div id="aa"></div>

  <script>
    //es6生成json对象
    function strMapToObj(strMap) {
      let obj = Object.create(null);
      for (let [k, v] of strMap) {
        obj[k] = v;
      }
      return obj;
    }

    function strMapToJson(strMap) {

      return JSON.stringify(strMapToObj(strMap));
    }

    myMap = new Map();
    for (var i = 1; i < 10; i++) {
      myMap.set(i, "sd")
    }

    var c = strMapToJson(myMap);
    console.log(c);
  </script>
</body>

</html>
